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Over 30 years ago, the head impulse test (HIT) was measured with search coil recordings and it provided robust evidence for a new test of vestibular function that could detect impairment of a single semicircular canal, that is, the lateral canal. Over the next two decades, the diagnostic spectrum of HIT was expanded to the testing of vertical canals, differentiation of central from peripheral vestibulopathy, and incorporation of visual interaction - the suppressed head impulse. However, HIT measurement was limited to very few specialized laboratories that were able to maintain the time-consuming and expensive operation of the scleral search coil system, which is the gold standard in eye movement recording. The video HIT (vHIT) was validated for the first time over 10 years ago, against the search coils, and its introduction into dizzy clinics worldwide has revolutionized the practice of neuro-otology. Here we review the basic physiology, practical aspects, and clinical application of the vHIT.
This article was published in the following journal.
Name: Seminars in neurology
An erratum was issued for: Testing of all Six Semicircular Canals with Video Head Impulse Test Systems. The article title was updated. The article title was updated from: Functional Testing of all Six...
The video-Head-Impulse-Test (vHIT) is widely used to evaluate vestibular function. Nevertheless, there is no consensus on the necessary or ideal number of impulses performed for robust VOR gains. Ther...
To describe the possible diagnostic role of video-head impulse test (vHIT) in patients presenting with positional downbeat nystagmus (PDN) due to benign paroxysmal positional vertigo (BPPV) involving ...
The function of the vestibular system among patients with Sudden Sensori Neural Hearing Loss will be evaluted using the video Head Impulse Test
The study investigates the feasibility and safety of the telemedical implementation of three diagnostic oculomotor tests using a video-oculography device and an extended teleconferencing s...
The purpose of this research study is to test whether a Computerized Rotational Head Impulse Test-Vertical (crHIT-vertical) is able to reliably evaluate the vertical semicircular canals in...
The purpose of the current study is to determine if pre-exposure through video modeling will enhance testing compliance in a population of children who are receiving a diagnostic evaluatio...
This study will measure the effects of soft surgical techniques on vestibular function and quality of life in patients pre- and post-cochlear implant (CI) surgery. Additionally, the invest...
Allows patient diagnoses in the physician’s office, in other ambulatory setting or at bedside. The results of care are timely, and allow rapid treatment to the patient. (from NIH Fact Sheet Point-of-Care Diagnostic Testing, 2010.)
Identification of SACCADES during a rapid head rotation to assess VESTIBULOOCULAR REFLEX.
Laboratory and other services provided to patients at the bedside. These include diagnostic and laboratory testing using automated information entry.
Used with articles which include video files or clips, or for articles which are entirely video.
Endoscopic surgical procedures performed with visualization via video transmission. When real-time video is combined interactively with prior CT scans or MRI images, this is called image-guided surgery (see SURGERY, COMPUTER-ASSISTED).
Neurology - Central Nervous System (CNS)
Alzheimer's Disease Anesthesia Anxiety Disorders Autism Bipolar Disorders Dementia Epilepsy Multiple Sclerosis (MS) Neurology Pain Parkinson's Disease Sleep Disorders Neurology is the branch of me...